... with the high purity quartz tube, matching with the appropriation uv lamp tube for water treatment, sterilization strong, long time, ... water treatment, food, drink, life and other dield. Specifications:1. UV sterilizers use the 304 stainless steel inside and outside.2 ... main internal and external are polished to enhance the UV irradiance.3. The UV light penetrate the heart of DNA of pathogens,virus ...